Apparatus for compressing hay, &amp; c.



No. 649,443. Patented May 8, I900. C. LUZZATTO.

APPARATUS FOR GOMPRESSING HAY, 81.0.

(Application filed Nov. 14, 1899.)

(No Model.)

UN ITED ems-e tsmmmza-m, or ItiHrAR'ITALY,

M mta-Arus roa cdtneass'stue HAY-,mi.

srncznca'rrox mining 5r 2mm 1m 649,4;3, dated May a, 1900.

ammonia Koivemher 14, nice. SeriaFNa 736,962.1R'omodel.)

To all when; if may cancertr Beitk-nown that LCESABE EUzz'ATTo,a sub-,ie'ct-of -tlie Emperor of Austria-Hungary, residiiig atlililan, in theKingdom of Italy, have invented certainmew and useful Improvementsin'Apparatus for Compressing IIay,

Straw, and-Like Materials, of which the following is a'specification'.

This invention relates to apparatus for compressing hay, straw, husks,and like bulky materials, but nioreparticularly to that type of press inwhichthe material is conveyed by a screw or conveyer into a preliminarypressing-chamber, where it is partly compressed, and fed from there in awell-known manner and by well-known means into the com-pression-chamberproper. A serious disadvantage in these presses is that during theforward motion of the plunger in the compressing-chamber proper aportion of the material returns into the preliminary chamber, andthereby unfavorably afiects the size of the cake of compressed material,as well as the working of the press. These disadvantages are obviated,according to this invention, by closing or shutting off thecompression-chamber from the preliminary chamber by means of a slideduring the operation of compressing the material, thus preventing thelatter from finding its way back into the preliminary chamber.

The invention will be readily understood by reference to theaccompanying drawing, which represents a sectional side elevation of aportion of the compressing apparatus.

In said drawing, m is the preliminary compressing-chamber, and n is thesupply-trough, communicating with the preliminary cham-v berm near itslower end and in which is mounted a screw conveyer s, which may bedriven by any suitable means. The preliminary compressing-chamber isshown as arranged vertically and communicates at its lower end with themain compressing-chamber 19, in which the press-plunger I) reciprocates.

As the press-plunger I), which is operated in a well-known manner and byknown means,

moves outward from the main compressionchamber it moves the slide a fromthe entrance to the preliminary chamber by means of a. pawl 0, carriedby the plunger 1), engagiug arecess in the said slide, thereby allow-,i'ng-material from the said preliminary chamber to be fed into thecompression-chamber proper. When the plunger b arrives at the rear endof its stroke, the pawl 0, operating the slide a, is disengaged fromthis latter by striking against a catch f, fixed to the frame of thepress. The slide a is then forced inward above the plunger by the actionof a spring 0?, suitably mounted, and which has been compressed orplacedin tension by a lever e, pivotally connected to the slide a and to abracket (1 or other suitable part of the structure, as by a link r. Thisslide cuts through the material, which is fed into thecompression-chamber in the usual manner by the action ofavertically-moving plunger, thus closing the compression-chamber andpreventing the material under treatment from rentering the preliminarychamber situated above, so that all the material is now subjected tocompression by the press-plunger.

The slide a is fitted with a steel cutter or knife h, which acts inconjunction with another cutter k, fixed to the upper portion of thecompression-chamber, for cutting material and providing a perfectseparation between the compression-chamber and the preliminary chamber.

As the press-plunger b arrives at the end of its forward stroke the pawlc engages in the recess formed in the slide a, and when the said plungeragain moves rearward it carries with it the slide, which is relievedfrom the pressure of the compressed material and so enables the sameoperations to be repeated.

To prevent the slide a when the press is running idle-i. e., when allthe material has been fed in-from striking against the inner end of thechamber, it is advantageous to provide the lever 6 with a dash-pot orair-buffer I.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is-

1. In an apparatus for compressing hay, straw and other bulky materials,the combination with the preliminary compression chamber, maincompression-chamber, and plunger, of a slide for closing or shutting offthe main compression-chamber from the preliminary compression-chamber,and means for moving the said slide outward as the plunger moves outwardand for returning said slide, substantially as and for the purposehereinbefore described.

2. In an apparatus for compressing hay, straw and other bulky materials,the combination with the preliminary compressionchamber, maincompressionchamber, and plunger, of a slide for shutting 01? the maincompression-chamber from the preliminary compression-chamber, a pawlpivoted to the plunger and adapted to engage in said slide during therearward motion of the said plunger so as to cause the slide to moveoutward with the plunger, and means for returning said slide whenreleased from the pawl, substantially as and for the purposehereinbefore described.

3.'In an apparatus for compressing hay, straw and other bulky materials,the combination with the preliminary chamber, the compression-chamberand the plunger, of a slide for shutting off the compression-chamberfrom the preliminary chamber, a pawl pivoted to the plunger and adaptedto engage said slide, a disengaging-catch for the said pawl and aspring-controlled lever pivoted to the frame of the press and servingfirst to compress its spring and upon its release to move the slide,connected with it, inward, substantially as and for-the purposehereinbefore described.

4. In an apparatus for compressing hay, straw and other bulky materials,the combination with the preliminary chamber, the compression-chamber,and plunger, of aslide for shutting off the compressionchamber from thepreliminary chamber, a pawl carried by the plunger and adapted to engagesaid slide, a disengaging-catch for the pawl, spring-controlled leverpivoted at one end to the said slide and at its other end to the wallsof the press, and knives or cutters fixed to the slide and the pressrespectively, substantially as and forthe purpose hereinbeforedescribed.

' In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CESARE LUZZATTO.

